@KSN One thing to consider is – Do you often press your right foot fully to the floor in your BMW? If you seem to get enough power without flooring it, then the mild hybrid may be powerful enough, you just might need to “give it more gas” than you usually do.
If you often press your foot to the floor in the BMW, then the MHEV Sportage would likely feel underpowered.
If I wasn’t keeping my golf, I wouldn’t have ordered the MHEV (without a test drive) as I do like to drive “lively” on occasion.